- SpiderCheck: fixed Location mutation bug - bodyBlock was reading y-1 (same as feetBlock) and headBlock was reading y instead of y+1. Now uses block coordinates directly.
- ConfigManager: decay task no longer reads YamlConfiguration from background thread. decayRate is now volatile and refreshed on reload from main thread only.
- JesusCheck, SpeedCheck, NoFallCheck: loc.subtract() now uses .clone() to prevent silent Location mutation.
- VelocityCheck: decrementVelocityCheckTicks() moved past the minExpected threshold check to avoid consuming a tick on packets that are immediately discarded.
